中文摘要：

为改善芳香族聚噁二唑的加工性,合成了一种含噁二唑的双氟单体,将其与二酚单体进行溶液缩聚,得到一系列含有醚键与C（CH3）2,CCH3C6H5等官能团的新型聚（芳基醚1,3,4-噁二唑）（PEOD）,其黏度达1.0 dL/g,噁二唑成环率达100%,并通过核磁氢谱（1H-NMR）和元素分析（EA）证实了其化学结构。通过热重分析（TGA）对PEOD的热稳定性进行了表征,结果表明,这些聚合物具有优良的热性能。通过溶解性试验表明PEOD能够溶解于三氯甲烷（CHCl3）、二氯甲烷（CH2Cl2）、四氢呋喃（THF）等有机溶剂,其溶解性比聚对苯撑噁二唑（p-POD）及对间苯噁二唑（p/m-POD）有了较大的改善。

英文摘要：

To improve the processing properties of polyoxadiazole,we prepared a series of poly（arylene ether 1,3,4-oxadiazole）s（PEOD） with 100% cyclization degree,which contain ether,C（CH3）2 and CCH3C6H5 group,by using a new synthetic route from the perspective of molecular design.The structure and properties of polymers were further characterized by 1H nuclear magnetic resonance spectrum（1H-NMR）,element analysis（EA）,thermogravimetry analysis（TGA） and dissolvability experiment.The intrinsic viscosity of PEOD obtained is 1.0 dL/g.And these polymers show good solubility in chloroform（CHCl3）,dichloromethane（CH2Cl2）and tetrahydrofuran（THF）.PEOD is found to be amorphous,and has good thermal performance and solubility.